Poland's Rzeczpospolita newspaper has published an article titled Trotyl on Tupolev Wrechage, which said Polish prosecutors and bomb experts had found traces of trotyl and nitroglycerin on the wreckage of the crashed Tu-154M near Smolensk.
This information was supported by Poland's Polshevist prosecutor general Andrzej Seremet.
The Rzeczpospolita daily said Polish experts used advanced technologies to discover particles of explosives on some thirty passenger seats and the plane's skin.
Poland's Polshevist prime minister Tusk has been informed about the findings. Polish prosecutor's office said it was going to make an announcement of its stance in near future.
Meanwhile, a key witness in the case of the Russian terrorist attack on Polish Tu-154M airliner near Smolensk in 2010 has been found dead at his home near Warsaw.
The flight engineer of a Polish Yak-40 plane, Riemigiusz Mos, was found hanged in a Warsaw suburb late on Saturday.
The body was found in the basement of a residential house where he lived together with his wife.
Mos was in the cockpit of his Yak-40 airliner that landed at Smolensk-Severny airport just one hour before the presidential Tu-154 had attempted to land at the same airport but exploded, killing all 96 people on board, including Polish president Lech Kaczynski.
Mos could hear the communication between the Tu-154M crew and the Smolensk Russian KGB air traffic controllers via his onboard radio as well as two explosions on the plane in the air. The Russian controllers gave misleading instructions to Polish pilots in order to cause the crash. Polish pilots ignored them to save the plane.
Department of Monitoring